Blood vessels that lead to the brain can shrink with age or with certain medical conditions. But small vessel brain disease may or may not have any symptoms.

How the body responds after a seizure depends on the areas of the brain affected. Here are symptoms that could occur, from deep sleep to dizziness and more.

It’s rare, but a disease linked with old age sometimes strikes during the prime of life. Find out what's known about signs of dementia in your 40s or 50s.

According to the National Headache Foundation, about 29.5 million people in American suffer from migraine symptoms, including soreness in the temples. Temple soreness can be painful and debilitating, interfering with daily activities and relationships.

If staying alert and energized is your goal, the same foods might best suit your "avoid" list. Gaining understanding of sleep-related foods can help guide you toward making wise dietary decisions.

Headaches are universal. Almost everyone has experienced some form of headache at some point. Here are the 5 worst and what you can do about each.

Facial numbness occurs with many medical conditions including traumatic and nontraumatic nerve damage as well as central nervous system disorders, among others.

Hiccups are caused by reflex spasms, or contractions, of the diaphragm -- the dome-shaped muscle separating the lungs from the stomach and other abdominal contents. As the diaphragm contracts, air is sucked into the lungs. Almost immediately afterwards, the vocal cords close, producing the typical hiccup sound.

Fetal hiccups begin early in pregnancy, around the eighth to tenth week of gestation. When hiccups begin, the baby is too small for the mother to notice them. But as the baby grows, many women will feel them.

Although headaches may occur for no obvious reason, they are sometimes a symptom of a health problem. Headaches over just one eye -- either the right or the left -- may be due to an infection in the eye or surrounding area, such as the sinuses.

Getting used to a new pair of glasses is not always easy. Sometimes adjusting to a new prescription, or even different frames, can take a little time.

A seizure is an abnormal burst of electrical activity in the brain. While some seizures cause no symptoms, others produce movements or changes in behavior, sensation or level of consciousness. When seizures occur repeatedly, this usually indicates a seizure disorder, or epilepsy.